| 摘要 |
<p>The present subject matter relates to a turbulence free ring (TFR), for a pipe-coupler unit. The TFR includes a main portion, forming a closed loop of predetermined diameter, webbed portions extending in an axial direction from the main portion, a fitment edge, extending in a radially outward direction from the main portion, and a raised section having a substantially flat top surface. The raised section extends in a radially inward direction from the main portion.</p> |
